veiwing someone facebook inbox

Can you get into someones facebook inbox with out there password? not looking to send anything just to see if it can be done to read their inbox , Or if there is a way to half *** get into there account with out password to see what they have put on others walls? things like that not meant for any harmfull reasons.

that's all good, thank you for the response ManZzup! Only thing is - I don't have a webhost - at all? I've looked for some on Google, they all charge, do any of them let you sign up and do it for free withOUT requiring credit card details? Much Appreciated!